You have cancer or have a loved one who has been diagnosed with cancer! Your blood runs cold when you hear the diagnosis. After the shock and denial come the questions: What will I have to go through now? What are my chances? Knowledge beats cancer informs patients, and anyone who wants to know more, about all facets of cancer: What cancer is and how it originates; how common it is and success of cancer therapies; the importance of diet, regular examinations and self examination; the many branches and approaches of modern therapy; modern treatment and prognosis of common cancers (29 types); breakthroughs in molecular biology with fewer side-effects; bone marrow stem cell transplantation; Median survival periods; alternative, complementary and integrated therapies; patient support, recovery after mastectomy, cancer in youth and children, effective pain control, care of patients with advanced cancer; support by community organisations; author's personal perspective on suffering and healing through faith.